African roots of the human family tree

Johannesburg, South Africa (CNN) -- How would you feel knowing you are related to your boss, your neighbor, or better yet your partner? Don't worry, you may have to go back 1,000, 20,000 or maybe even 100,000 years to find a common ancestor, but generally speaking it is true.

Advanced DNA testing combined with recently unearthed discoveries are bolstering the belief that if you look back far enough, all living human beings are the descendents of a small, innovative and ambitious set of people on the African continent.

With the mapping of the human genome in 2003, combined with thousands of people around the world submitting their DNA for testing, there's now mounting physical proof we all started in Africa before migrating around the world....